N-audio Electronics
Handcrafted Boutique Guitar Effects

Isolated guitar splitter / Di box


    Are you looking for a compact guitar splitter box with a high impedance input and two independent fully transformer balanced galvanically isolated outputs? A combination of a splitter y-box which distributes guitar signal to two amplifiers and a powerful DI box for recording with your PC or in a studio? This is your best choice! N-audio Isolated guitar splitter / DI box is a great unit which combines both features and gives you the flexibility to use in different combinations.


    The N-audio Isolated guitar splitter / DI box has a high impedance input. It is designed to connect your guitar, bass guitar, synth or any line level signal sources like the output of a guitar effect, a preamp, a line level output from your PC audio interface or a line level output from your mixing desk. Unlike a typical passive transformer isolated guitar splitter, this unit has a high impedance FET buffer a high current transformer driver and two independent galvanically isolated balanced TRS outputs. The heart of this guitar splitter is a high-quality audio transformer, which electrically isolates the two outputs, eliminating the possibility of ground loops and gives you an excellent common mode rejection ratio (CMRR). Each output has an independent ground lift switch. Output B also has a phase reverse switch. The well optimized compact size of the splitter can be placed almost everywhere in your pedalboard.


The N-audio Isolated guitar splitter / Di box is a very flexible unit and could be used in many variations. Here are a couple of them:

As a guitar splitter for two amps or combos

As an active DI box

As a line isolator

As a guitar buffer


This unit works well with any voltage between 9 and 18VDC. The internal DC protection will protect the unit against AC voltage or reverse polarity voltage. As a part of your pedalboard, usually, it can be powered by a 9VDC source. For higher headroom and high-level studio signals, 18VDC supply is preferred.


  • Input impedance 1 Megaohm
  • Maximum input level @ 18VDC: +10dBu (7Vpp)
  • Outputs: 2 independent galvanically isolated TRS balanced outputs
  • Frequency response @ 10 Kohm output load: 30Hz÷70kHz ±1dB
  • Frequency response @ 600 Ohm output load: 30Hz÷30kHz ±1dB
  • Independent GND lift switch for each output
  • Phase reverse switch for channel B
  • Power consumption 25mA
  • Power supply: Regulated centre negative (BOSS style) 9-18 VDC. 
  • Weight: 340gr.
  • Dimensions: W/D/H - 5/10/3,5 cm
  • Designed and handcrafted in Europe
  • Lifetime warranty


 Isolated guitar splitter / Di box block diagram

Usually, we ship our Isolated guitar splitter / Di box within 1-2 days.
The time for delivery to Europe is 4-10 days, 2-4 weeks for worldwide delivery via post /registered priority mail/ and 3-6 days for worldwide delivery via EMS.

We accept almost any type of payment: Bank transfer, MoneyGram, Western Union etc. Also, you can buy directly from our site via PayPal, but if you like to choose your preferred payment method, please contact us. We will try to comply with your request.

Price: 170 Euro